Blind flange plays a vital role in the pipeline system. It is characterized by a solid plate without a bore, effectively sealing the end of a pipe or vessel. It is an important part of pipeline maintenance, testing, and isolation.
Designed in various materials such as carbon steel, stainless steel, and alloy steel, they offer durability and resilience under diverse operating conditions and pressure levels. Common types include raised face(RF) and flat face（FF）, with the former ensuring a secure seal to minimize leakage risks.
Widely utilized in industries like oil and gas, petrochemical, and chemical processing, blind flanges provide versatility for applications requiring temporary or permanent closure of pipeline termination points. Their standardized dimensions and compatibility with different pipe sizes make them an efficient solution for ensuring system integrity and safety during inspection, cleaning, or modification activities.
Introduction
|
Standard |
ANSI/ASME B16.5, DIN, JIS, BS, GB |
|
Material |
Stainless steel (typically ASTM A182 F304, F316, F321, F347) |
|
Surface |
Anti-Rust Oil, Painting ( Black, Yellow), Galvanizing, Power Coating |
|
Type |
Forging, mechanical cutting |
|
size |
1/8" NB - 48"NB |
|
Delivery time |
Within 5-30 days after receiving the prepaid |
|
Packing |
Wooden Box, Customized according to customer requirements |
|
Application |
Stainless steel blind flanges are commonly used in various application scenarios in industries such as oil and gas, chemical, petrochemical, and power generation. |
Blind Flanges-PN6
|
DN |
D |
a |
c |
b |
e |
f |
BOLT |
No HOLES |
|
10 |
75 |
50 |
35 |
12 |
2 |
11 |
M10 |
4 |
|
15 |
80 |
55 |
40 |
12 |
2 |
11 |
M10 |
4 |
|
20 |
90 |
65 |
50 |
14 |
2 |
11 |
M10 |
4 |
|
25 |
100 |
75 |
60 |
14 |
2 |
11 |
M10 |
4 |
|
32 |
120 |
90 |
70 |
14 |
2 |
14 |
M12 |
4 |
|
40 |
130 |
100 |
80 |
14 |
3 |
14 |
M12 |
4 |
|
50 |
140 |
110 |
90 |
14 |
3 |
14 |
M12 |
4 |
|
65 |
160 |
130 |
110 |
14 |
3 |
14 |
M12 |
4 |
|
80 |
190 |
150 |
128 |
16 |
3 |
18 |
M16 |
4 |
|
100 |
210 |
170 |
148 |
16 |
3 |
18 |
M16 |
4 |
|
125 |
240 |
200 |
178 |
18 |
3 |
18 |
M16 |
8 |
|
150 |
265 |
225 |
202 |
18 |
3 |
18 |
M16 |
8 |
|
200 |
320 |
280 |
258 |
20 |
3 |
18 |
M16 |
8 |
|
250 |
375 |
335 |
312 |
22 |
3 |
18 |
M16 |
12 |
|
300 |
440 |
395 |
365 |
22 |
4 |
22 |
M20 |
12 |
|
350 |
490 |
445 |
415 |
22 |
4 |
22 |
M20 |
12 |
|
400 |
540 |
490 |
465 |
22 |
4 |
22 |
M20 |
16 |
|
450 |
595 |
550 |
520 |
24 |
4 |
22 |
M20 |
16 |
|
500 |
645 |
600 |
570 |
24 |
4 |
22 |
M20 |
20 |
|
600 |
755 |
705 |
670 |
30 |
5 |
26 |
M24 |
20 |
|
700 |
860 |
810 |
775 |
40 |
5 |
26 |
M24 |
24 |
|
800 |
975 |
920 |
880 |
44 |
5 |
30 |
M27 |
24 |
|
900 |
1075 |
1020 |
980 |
48 |
5 |
30 |
M27 |
24 |
|
1000 |
1175 |
1120 |
1080 |
52 |
5 |
30 |
M27 |
28 |
|
1200 |
1405 |
1340 |
1295 |
60 |
5 |
33 |
M30 |
32 |
|
1400 |
1630 |
1560 |
1510 |
68 |
5 |
36 |
M33 |
36 |
|
1600 |
1830 |
1760 |
1710 |
76 |
5 |
36 |
M33 |
40 |
|
1800 |
2045 |
1970 |
1920 |
84 |
5 |
39 |
M36 |
44 |
|
2000 |
2265 |
2180 |
2125 |
92 |
5 |
42 |
M39 |
48 |
Blind Flanges-PN10
|
DN |
D |
a |
c |
b |
e |
f |
BOLT |
No HOLES |
|
10 |
90 |
60 |
40 |
16 |
2 |
14 |
M12 |
4 |
|
15 |
95 |
65 |
45 |
16 |
2 |
14 |
M12 |
4 |
|
20 |
105 |
75 |
58 |
18 |
2 |
14 |
M12 |
4 |
|
25 |
115 |
85 |
68 |
18 |
2 |
14 |
M12 |
4 |
|
32 |
140 |
100 |
78 |
18 |
2 |
18 |
M16 |
4 |
|
40 |
150 |
110 |
88 |
18 |
3 |
18 |
M16 |
4 |
|
50 |
165 |
125 |
102 |
18 |
3 |
18 |
M16 |
4 |
|
65 |
185 |
145 |
122 |
18 |
3 |
18 |
M16 |
8 |
|
80 |
200 |
160 |
138 |
20 |
3 |
18 |
M16 |
8 |
|
100 |
220 |
180 |
158 |
20 |
3 |
18 |
M16 |
8 |
|
125 |
250 |
210 |
188 |
22 |
3 |
18 |
M16 |
8 |
|
150 |
285 |
240 |
212 |
22 |
3 |
22 |
M20 |
8 |
|
200 |
340 |
295 |
268 |
24 |
3 |
22 |
M20 |
8 |
|
250 |
395 |
350 |
320 |
26 |
3 |
22 |
M20 |
12 |
|
300 |
445 |
400 |
370 |
26 |
4 |
22 |
M20 |
12 |
|
350 |
505 |
460 |
430 |
26 |
4 |
22 |
M20 |
16 |
|
400 |
565 |
515 |
482 |
26 |
4 |
26 |
M24 |
16 |
|
450 |
615 |
565 |
532 |
26 |
4 |
26 |
M24 |
20 |
|
500 |
670 |
620 |
585 |
28 |
4 |
26 |
M24 |
20 |
|
600 |
780 |
725 |
685 |
34 |
5 |
30 |
M27 |
20 |
|
700 |
895 |
840 |
800 |
38 |
5 |
30 |
M27 |
24 |
|
800 |
1015 |
950 |
905 |
42 |
5 |
33 |
M30 |
24 |
|
900 |
1115 |
1050 |
1005 |
46 |
5 |
33 |
M30 |
28 |
|
1000 |
1230 |
1160 |
1110 |
52 |
5 |
36 |
M33 |
28 |
|
1200 |
1455 |
1380 |
1330 |
60 |
5 |
39 |
M36 |
32 |
|
1400 |
1675 |
1590 |
1535 |
|
5 |
42 |
M39 |
36 |
|
1600 |
1915 |
1820 |
1760 |
|
5 |
48 |
M45 |
40 |
|
1800 |
2115 |
2020 |
1960 |
|
5 |
48 |
M45 |
44 |
|
2000 |
2325 |
2230 |
2170 |
|
5 |
48 |
M45 |
48 |
Xinhang Special Material Co., Ltd. Hangzhou Branch is famous China PN10 Standard Raised Face(RF) Metal Sorf Blind Flange Cap With Thru Holes suppliers and OEM/ODM PN10 Standard Raised Face(RF) Metal Sorf Blind Flange Cap With Thru Holes manufacturers, founded in 2007 and moved to Longyou Economic Development Zone, Zhejiang Province, in 2022. It covers an area of 130,000 square meters, more than 30 production lines, 300 workers, 20 R&D people, 30 inspection people and an annual output of 50,000 tons.
It has passed ISO9001:2008 quality management system, PED 97/23/EC EU Pressure Equipment Directive certification, China Special Equipment Manufacturing License (Pressure Tube) TS certification, ASME certification, provincial enterprise standardization management system, ISO14000:2004 environment management system, cleaner production (green enterprise), and a series of certifications, as well as China Classification Society (CCS), American Bureau of Shipping (ABS), British Register of Shipping (LR), Deutsche Veritas (GL), Bureau Veritas Society (BV), Det Norske Veritas (DNV), and Korean Register of Shipping (KR) factory certification.
The main products include stainless steel pipes, pipe fittings, flanges, valves, etc., which are widely used in petroleum, chemical industry, nuclear industry, smelting, shipbuilding, pharmaceuticals, food, water conservancy, electric power, new energy, mechanical equipment, and other fields. The company adheres to the corporate tenet of "quality for survival, reputation for development" and wholeheartedly serves every customer to create a win-win situation.
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+86 18969027607
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